Smart pen



FIG. 1 is a front and right side perspective view of a smart pen showing our new design;

FIG. 2 is a back and left side perspective view thereof;

FIG. 3 is a right side perspective view thereof;

FIG. 4 is a front perspective view thereof;

FIG. 5 is a bottom perspective view thereof;

FIG. 6 is a top perspective view thereof;

FIG. 7 is a right and back side perspective view thereof, with detached top cap; and,

FIG. 8 is a close-up view of the detached top cap thereof.

Any broken lines in the drawings are included for the purpose of illustrating environmental structure and form no part of the claimed design. 

CLAIM The ornamental design for a smart pen, as shown and described. 